I left SpaceX a little while ago to spend more time with our new baby and family. I’m really proud of the Swarm and Direct to Cell (DTC) teams for going from a clean sheet design to commercial start with many hundreds of satellites in orbit serving users on 6 continents with text and data directly to their unmodified phones. It still seems like magic that we can text family and friends through the DTC sats traveling at Mach 23 at a 700 km slant distance directly through the worst part of a hurricane. I’m excited for the world to experience what is coming in the next generation of DTC, it will be really special.
I was also given a shot to re-design the satellite Hall thruster with a small focused team. We made Argon propellant viable, and in fact made it more efficient and higher Isp than all previous Krypton or Xenon flight Hall thrusters, and did so with about 10x fewer parts. There are still many plasma physics secrets to be unlocked for future thruster generations.
The engineering talent density, dedication, and speed at SpaceX are the highest in the world and it was fun to work alongside so much raw horsepower. I am very grateful to
@elonmusk and
@Gwynne_Shotwell for treating us so well at every turn, taking a chance on our team, and trusting us to build such a big project. Obviously this is only the beginning for
@SpaceX as Elon and the team continue to expand humanity’s presence to the Moon, Mars, and further along the Kardashev scale.